# Problem from Paul's Online Notes: quadratic formula

#### Romsek

##### Full Member
The problem is that the correct answer is

$$\displaystyle -1 \pm \dfrac{\sqrt{30}}{5}$$

not

$$\displaystyle \dfrac{-1 \pm \sqrt{30}}{5}$$

you actually got the second one correct, and probably typoed the first one somewhere.

#### SarahMB

##### New member
Oh, I see. I concatenated the –1 into the first answer, and then failed to see that I could factor it out of the second. Thank you!